Yes there are a number of tools, either included or available.
You can try iptraf , etherape , tcpdump or ethereal, but there are many others.
When looking for bandwidth hogs I prefer etherape or iptraf.
You can get etherape for Fedora at : http://dag.wieers.com/packages/etherape/
If you prefer a console app, I can recommend "iftop"
http://www.ex-parrot.com/~pdw/iftop/
--
-John (john@xxxxxxxxxxx)
